19 – 280 HEIDENHAIN Service Manual iTNC 530 HSCI
Signal type and
input frequency
In MP118, bit 0 the signal type (1 Vpp or 11 µApp) is defined for the position encoder of the axis
concerned.
In MP118, bit 2 the input frequency is defined for the position encoder of the axis concerned.
In MP118, bit 3 you can see, whether the position encoder for this axis transmits analog 1 Vpp or
11 µApp signals to the control (conventional position encoders, EnDat 2.1), or whether position and
distance are transmitted digitally with a serial data protocol (EnDat 2.2).
In MP119, bit 0 the signal type (1 Vpp or 11 µApp) is defined for the position encoder of the spindle
concerned.
In MP119, bit 2 the input frequency is defined for the position encoder of the spindle concerned.
In MP119, bit 3 you can see, whether the position encoder for this spindle transmits analog 1 Vpp or
11 µApp signals to the control (conventional position encoders, EnDat 2.1), or whether position and
distance are transmitted digitally with a serial data protocol (EnDat 2.2).
19.1.3 Error messages
The following error messages may be displayed, if there are problems related to position encoders:
8870 Input frequency from position encoder
8AF0 Encoder defective
8BE0 Encoder defective
8C00 Input frequency from position encoder
AC30 CC amplitude too high
AC40 CC amplitude too small
AC50 CC frequency too high
C430 Error of position input
E170 Pos. deviation too large
E170 Position error too large
EnDat defective
Check the position encoder
Position encoder: Amplitude too high
Position encoder: Amplitude too small
Position encoder defective
Position encoder: Frequency too high
Ref. mark: Incorrect spacing
For other signal types (TTL, etc.) adapters can be used.
--> See ”Position encoders” on page 28 – 511.
For other signal types (TTL, etc.) adapters can be used.
--> See ”Position encoders” on page 28 – 511.
Other error messages may also indicate problems with a position encoder.
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